Pith Number

pith:HHHPYMKV

pith:2023:HHHPYMKVLPQTUSUEBFMHGN5G7T

not attested not anchored not stored refs pending

The Optical Aurorae of Europa, Ganymede and Callisto

Carl Schmidt, Katherine de Kleer, Maria Camarca, Michael E. Brown, Zachariah Milby

arxiv:2302.08487 v1 · 2023-02-16 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHHPYMKVLPQTUSUEBFMHGN5G7T}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T05:42:38.848290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39cefc31555be13a4a8409587337a6fcf53038a0779118de68656a222792d980

Aliases

arxiv: 2302.08487 · arxiv_version: 2302.08487v1 · doi: 10.48550/arxiv.2302.08487 · pith_short_12: HHHPYMKVLPQT · pith_short_16: HHHPYMKVLPQTUSUE · pith_short_8: HHHPYMKV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HHHPYMKVLPQTUSUEBFMHGN5G7T \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 39cefc31555be13a4a8409587337a6fcf53038a0779118de68656a222792d980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27704579dd1135d6ff185223180c67360c09ddc19dd833343d07431841a8fe6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2023-02-16T18:47:46Z",
    "title_canon_sha256": "a7a83db2bc3a4e2350c2f0530fc0a046994521d933164d5327caaa6d54c55131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.08487",
    "kind": "arxiv",
    "version": 1
  }
}